Hillsboro Weather Forecast

    • 68
    • 89

    Mostly Sunny

    • 68
    • 91

    Partly Sunny

    • 65
    • 83

    Chance Rain Showers

    • 65
    • 86

    Slight Chance Thunderstorms

    • 65
    • 82

    Chance Thunderstorms

    • 60
    • 79

    Chance Thunderstorms

    • 59
    • 79

    Slight Chance Thunderstorms

Today 12 Sep Marion

Mostly sunny. A slight chance of Showers this morning. Highs in the lower 90s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 12 Sep Marion

Mostly clear. Lows in the upper 60s. South Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hillsboro Temperature Statistics

September Temperature

Newton, Newton City/County Airport (21.1 miles)

  • Lowest 4 September, 2025

    53.6 °F

  • Average September

    66.9 °F

  • Highest 3 September, 2025

    84.9 °F

Climate (2020–Present)

Newton, Newton City/County Airport (21.1 miles)

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  • Average Low 2020–2025

    46.5 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    68.4 °F
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